Title:
A recovery method and a device of the precious metals which go via a compound oxide
Document Type and Number:
Japanese Patent JP5999478
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method and apparatus for recovering a noble metal, by which the noble metal can be efficiently recovered from a material containing the noble metal without using a process such as copper smelting or strongly oxidizing acid such as aqua regia.SOLUTION: This invention relates to a method for recovering a nobel metal from a material containing one or both of the noble metal and a compound thereof, comprising: a step of forming a compound oxide comprising the noble metal and one or both of an alkali metal and an alkali earth metal by mixing and heating the noble metal in the noble-metal-containing material and one or both of an alkali metal source and an alkali earth metal source; and a step of dissolving a metal component in the acid by bringing the material containing the obtained compound oxide into contact with an acid.
Inventors:
Ryo Kasuya
Ken Miki
Yutaka Tai
Ken Miki
Yutaka Tai
Application Number:
JP2012123604A
Publication Date:
September 28, 2016
Filing Date:
May 30, 2012
Export Citation:
Assignee:
National Institute of Advanced Industrial Science and Technology
International Classes:
C22B11/00; B09B3/00; C22B7/00
Domestic Patent References:
| JP51068493A | ||||
| JP58199832A | ||||
| JP2015513614A |
Foreign References:
| KR1020110029494A | ||||
| US4132569 |
Attorney, Agent or Firm:
Toshio Nishizawa